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Glyceria borealis - (Nash.)Batch.

Common Name Small floating mannagrass
Family Poaceae or Gramineae
USDA hardiness Coming soon
Known Hazards None known
Habitats Wet places or shallow water[43].
Range Northern N. America - Newfoundland to Alaska, south to New York, Minnesota, Iowa and Oregon.
Edibility Rating    (2 of 5)
Other Uses    (0 of 5)
Weed Potential No
Medicinal Rating    (0 of 5)
Care (info)
Wet Soil Water Plants Semi-shade Full sun
Glyceria borealis Small floating mannagrass


Robert H. Mohlenbrock @ USDA-NRCS PLANTS Database / USDA NRCS. 1992. Western wetland flora: Field office guide to plant species. West Region, Sacramento.
Glyceria borealis Small floating mannagrass
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 1: 266.

 

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Summary


Physical Characteristics

 icon of manicon of flower
Glyceria borealis is a PERENNIAL growing to 1.5 m (5ft). The species is hermaphrodite (has both male and female organs) and is pollinated by Wind.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers wet soil and can grow in water.

UK Hardiness Map US Hardiness Map

Synonyms

Panicularia borealis.

Habitats

 Pond; Bog Garden;

Edible Uses

Edible Parts: Seed
Edible Uses:

Seed - cooked. Ground into a flour and used as a cereal[105, 161, 177]. The seed is very small and fiddly to harvest[K].

References

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.


None known

References

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FOOD FOREST PLANTS

Other Uses

None known

Special Uses

References

Cultivation details

We have very little information on this species and do not know if it will be hardy in Britain. It will require wet conditions or shallow water. There must be some doubt over the validity of this name. The species is said to have a synonym of Panicularia fluitans, this name is also given as a synonym of G. fluitans and it is possible that G. borealis is no more than a synonym of G. fluitans[K].

References

Temperature Converter

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Propagation

Seed - sow spring in a greenhouse in a pot standing in 3 - 5cm of water. Surface sow the seed, or only just cover it. Germination should take place within 3 weeks. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in early summer. Division in spring. Very easy, larger clumps can be replanted direct into their permanent positions, though it is best to pot up smaller clumps and grow them on in a cold frame until they are rooting well. Plant them out in the spring.

Other Names

If available other names are mentioned here

Found In

Countries where the plant has been found are listed here if the information is available

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Glyceria acutifloraCreeping mannagrassPerennial0.6 0-0  LMHNWeWa10 
Glyceria fluitansFloating Manna Grass, Water mannagrassPerennial0.5 4-8  LMHNWeWa30 
Glyceria occidentalisNorthwestern mannagrassPerennial1.0 0-0  LMHSNWeWa10 
Glyceria plicata Perennial0.8 -  LMHSNWeWa10 
Glyceria septentrionalisEastern Manna Grass, Floating mannagrassPerennial1.5 0-0  LMHSNWeWa10 
Glyceria striataFowl Manna Grass, Fowl mannagrassPerennial1.5 0-0  LMHSNWeWa10 

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

 

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Expert comment

Author

(Nash.)Batch.

Botanical References

43235

Links / References

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